Device for igniting and cutting off gas-jets.



No. 767,664. PATENTED AUG. 16, 1904.

F. RO S SBAOH-ROUSSET. DEVICE FOR IG'NITING AND CUTTING OFF GAS JETS.

APPLICATION FILED MAR. 12, 1902.

NO MODEL. 2 SHEETS-SHEET 1.

M W 5 9.5" fiz Fanfar- PATENTED AUG. 16, 1904.

P. ROSSBAGH-ROUSSET. DEVICE FOR IGNITING AND CUTTING OFF GAS JETS.

APPLIOATION I'ILED MAR.12, 1902.

2 SHEETSSHEET 2 N0 MODEL.

7 I l i g fi w (ll/ rill). l .1 ll

i I, Iv/a UNITED STATES Patented August 16, 1904.

PATENT OFFICE.

' FRITZ ROSSBAGH-ROUSSET, OF TEMPELHOF, GERMANY, ASSIGNOR TO THE FIRM G. GOLIASOH & CIE, METALLIVAARENFABRIK, OF

BERLIN, GERMANY.

DEVICE FOR IGNITING AND CUTTING OFF GAS-JETS- SPEGIFICATION forming part of Letters Patent No. 767,664, dated August 16, 1904.

Application filed March 12, 1902, Serial No. 97,908. (No model.)

To all whom it may concern.-

Be it known that I, FRITZ RossBAoH-RoUs- SET, asubject of the King of Prussia, German Emperor, residing at Tempelhof, near Berlin, in the Kingdom of Prussia, Germany, have invented certain new and useful Improvements in Devices for Igniting and Cutting Off Gas-Jets, of which the following is a full, clear, and exact specification.

My invention has relation to those systems of illumination with gas in which the lighting and extinguishing of the lamps is effected by pressure variations in the mains and servicepipes, and, as heretofore proposed, these variations are produced at the point of production of the gas-c1 a, the gas-works or at some point of general distributionthe lighting or extinguishing of all the lights affected by these pressure variations taking place simultaneously. Such a system is, however, generally speaking, impracticable, as it affords no means for lighting and extinguishing streetlamps, for instance, in different blocks, streets, or districts of a city at different times. On the other hand, the impulses sent through the network of gas-conduits must be powerful enough to be transmitted to all points, however distant from the gas-works or point or points of distribution, and in large cities the impulses are liable to be difi'used or dispersed in the network of pipes and rendered nugatory. This also applies to buildings, and particularly to dwellings Where the lighting and extinguishing of any of the lights or anumber of such as, for instance, the lights in different apartments or roomsshould at all times be under the control of the occupant or occupants.

My-invention has for its object the provision of means whereby the disadvantages referred to are obviated and whereby any number of lights in a gas distribution as, for instance, the lights of one or more blocks or of a street or of a district or the lights in any one or more rooms of a building-may be lighted and extinguished by pressure variations at will without influencing or aifecting the lights of adjacent blocks, streets, districts, or rooms in said distribution.

In the accompanying drawings, Figure 1 is a sectional elevation of a part of a building; and Fig. 2, a like view of a part of a street, illustrating, diagrammatically, the application of my invention to house and street lighting,

respectively; and Fig. 3 is a sectional view,

drawn to a larger scale, showing the preferred means used in buildings for producing pressure variations in the gas distribution and also showing the arrangement of the checkvalves for limiting the transmission of the gas impulses.

In Fig. 1 l have shown in dotted lines and as an example a gas distribution for an apartment on two floors of a building and parts of a stair-well leading from the lower to the second floor, the gas being supplied through pipe 6, connected to the street-main. (Not shown.) I have shown the pipe I) as having lateral branches 7? for supplying gas to fixtures a in the two rooms R and R and branches 7) for supplying gas to the stairwell fixtures a. Each burner is provided with means operated by abnormal pressure variations in the supply pipes or mains-that is to say, by a sudden abnormal increase or by a sudden abnormal decrease of the pressure in the gas pipe producing impulses. These means may be of any desired construction, and they may be organized to normally supply gas 'to an igniter-burner, to supply gas to the main burner, for instance, by a forcing impulse, and to cut off the gas from the main burner by a suction impulse. Said means, on the other hand, may be so organized as to cut off the supply of gas to the igniter-burner when gas is supplied to the main burner by a forcing impulse and to supply gas to the igniter-burner and cut off the gas from the main burner by a suction impulse. Thus, for instance, I may (and, in fact. preferably) make use of pressure-controlled lighting and extinguishing appliances, such as shown in Fig. 3, and organized to admit gas to the main burner by a forcing impulse and simultaneously cut oil gas from the igniter-Imrner and supply gas to the'igniter-burner by a suction impulse and simultaneously cut oil the supply of gas to the main burner. Thes'e impulses may be produced by any suitable or well known means and depend in their construction upon the distance to which the impulses are to be transmitted, or, in other words, upon the in tensity of theimpulses, and consequently upon the power of the impulse-producing device. If these impulses are to be transmitted over long distances-as, for instance, in streetlighting-in the gas-mains supplying gas to lamps on one or more or all sides of the block or in mains supplying gas to lamps on several blocks, I use any well known suction and forcing device of sufficient power to produce impulses of the required intensity-as, for instance, a suction and force pump-as indicated at c, Fig. 2. \Vhen, on the contrary, the impulses are transmitted short distancesas, for instance, from one point of a building or dwelling to another-I preferably make use of the device shown in Fig. 3 and indicated in Figs. 1 and 2 by the letter 0.

I do not desire to limit the invention to nor do I desire to specifically claim any particular construction of burner-controlling and impulse-producing devices, nor do I desire to claim those devices shown in Fig. 3, as they form the subject-matter of a separate application for patent, filed December 12, 1901, Serial No. 85,713.

For the purpose of limiting the transmission of impulses a network of gas-conduits, whether in street or buildings, is blocked out, so that impulses may be transmitted through the conduits in the block and no farther, and this I effect by interposing in the gas-conduit at the terminal points of the block two checkvalves of any desired form, one of these valves moving to its seat in the direction of flow of the gashence has to be held off its seat by a spring and the other is held off its seat by the flow of gas and is moved to its seat by back pressure. as will be more specifically described hereinafter.

Referring now to Fig. 1, Z) indicates the main supply-pipe connected to a gas-main in the street (not shown) and supplying gas to a dwelling and extending along the wall of a stair-well. The pipe has branches 1) supplying gas to stair-well fixtures and branches 6 supplying gas to fixture in two rooms R and B. An impulse-producing device a is connected at 7/ with pipe Z). A similar device in each of the two rooms R R is connected to the respective branch pipes 71. Between the impulse device 0 at the foot of pipe 7/ and between the impulse devices connected to branches 6 and said pipe 7) I interpose a pair of check-valves the casings of which are diagrammatically indicated at 1' 1", Figs. 1 and 2, of the general construction above referred to. It will be obvious that if a forcing impulse is produced at the foot of pipe 7) the pressure-controlled devices of all the burners in the stair-well will be actuated to admit gas to said bu rners. as more particularlydescribed hereinafter. This impulse can, however, not be transmitted to the street-main nor to the burners in rooms R B. because one of the check-valves, as that in will move to its seat. The same takes place when a forcing impulse is produced at c in either room R or R, the transmission of which impulse beyond the respective rooms being prevented by the closure of the valves in 9 When, on the contrary, the lights of a block are to be extinguished by a suction impulse, the transmission of the latter beyond the limits of the block is prevented by the closure of the valves in 9'.

From what has been said the limitation of the transmission of impulses in astreet-lighting system, Fig. 2, will be readily understood; but in this case a more powerful suction and forcing apparatus is empl0yedas, for instance, a hand operated suction and force pump 0, located in a housing below ground, as shown, to which access by unauthorized persons is prevented by any desired means.

I will now briefly describe the burner-controlling device, the impulse-producing device for short-distance transmission, and the checkvalves, reference being had to Fig. 3. C indicates the casing of the burner-controlling device; 0 apassage leading therefrom to the burner; 0 a by-pass leading to the igniterburner tube 6 and controlled by a screw-valve V, the inlets of passages 0 and 0 being reversely inclined or diverging to form seats for the controlling-valve V, secured to a spindle a, having two radial arms adapted to be acted on by the center tooth on the upper end of a valve-actuating lever L, fulcrumed in the casing at Z. The lever L is linked by a link Z to one end of a lever L, fulcrumed at Z, and whose opposite end is pivoted to a lug on a flexible diaphragm D, secured in an opening in casing C. To the lower end of easing C is secured the gas-supply pipe P, having a branch P connected to the bulb B of impulseproducing device, which bulb is contained in a casing C, having a front opening in which works a push-button B, said casing being secured to a wall within proper reach. The bulb is normally expanded by aspring S, and below said bulb is arranged a rod. 1*, pivoted to pendent link L said rod provided at its outer end with a button or knob l", and at its inner end is a coiled spring 8, serving to maintain the rod yieldingly in a substantiallyhorizontal position. The rod r also carries a radial arm 1', adapted to engage a notch 01. in push-button B when pushed into casing C to collapse bulb B. The bulb B beingnormally filled with gas, it is obviousthat when the gas is suddenly forced out by the collapsing of the bulb a forcing impulse will be produced in casing C, the bulb being held in its collapsed state against the stress of the expanding spring S by the radial arm 1" on rod It is furthermore obvious that when rod 4' is depressed to disengage radial arm 1* from button B the bulb will be suddenly expanded by spring S, drawing in gas and producing a suction impulse in casing U of the controlling device. In Fig. 3 the controlling-valve is shown on its seat on main burner-supply passage 0 while gas is supplied through by-pass 0 to igniter-tube t, one of the radial arms on spindle s lying on the right of the center tooth on valve-actuating lever L and the other arm on the left above said tooth. In Fig. 3 it is assumed that the push-button B has been disengaged from arm r and the spring has suddenly expanded bulb B. thus producing a suction impulse in casing C, whereby the diaphragm D is flexed to the right, rocking lever L in the same direction, and thereby shifting valve V from its seat on a to its seat on 0 thus admitting gas to the main-burner passage and cutting off gas from the igniterburner tube and at the same time bringing the other radial arm on valve-spindle s' to the left of the aforesaid center tooth on lever L.

Obviously if bulb B' is now suddenly compressed the reverse will take place under the forcing impulse, the diaphragm D will be flexed to the right, lever L will be moved in the same direction, and valve V from its seat on 0 back to its seat on 0 the other radial arm now lying as before on the right of the center tooth on lever L.

It is obvious that the operation above de scribed may be reversed that is to say, the valve V may be moved from c to 0 by a forcing impulse and from 0 to c by a suction impulse-by simply reversing the position of the valve V on its spindle.

-The check-valves are of like construction with the exception that the spring S is not necessary to that valve which is held off its seat by the normal gas-pressure in the supply-pipe, so that a description of the construction of one of the valves will suiiice.

indicates the valve-casing, having branches 6 and 8 for connection with the line-pipe, branch 3 being screwed into casing o for obvious purposes, the inner face of said branch 3 constituting the seat 8 for the valve V, whose stem slides in suitable bearings b in said casing and branch, valve V in casing 1' being held off its seat by the spring S. When a forcing impulse is produced in P, C, and P, it will be transmitted to valve V in casing 0' which valve is moved to its seat 8 against the pressure of the inflowing gas. A suction impulse will, on the contrary, move valve V in casing r to its seat. On the contrary, a forcing impulse produced at any point of the supply-pipe beyond the check-valves will move valve V in casing r to its seat, and a suction impulse will move valve V in casing 0- to its seat, as will be readily understood. In view of the constructionof the valves it is obvious that they may be transposed. Valvecasing o may be placed above valve-casing without affecting their operation.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is

1. The combination with a network, of gasconduits, burners interposed in said conduits, a gas lighting and extinguishing device for each burner adapted to be operated by abnormal pressure variations in the conduits and means to produce said variations; of means to prevent the impulses resulting from said pressure variations being dispersed in the network of conduits and becoming nugatory, substantially as set forth.

2. The combination with a network of gasconduits, burners interposed in said conduits, a gas lighting and extinguishing device for each burner adapted to be operated by abnormal impulses produced by variations of the pressure in said conduits; and an impulse-producing device at diflerent points of said network; of an impulse-checking device interposed in the gas-conduits at predetermined points on either side of each impulse-producing device adapted to check the transmission of the impulses beyond said checking devices, for the purposes set forth.

3. The combination with a network of gasconduits, burners interposed in said conduits, a gas lighting and extinguishing device for each burner, adapted to be operated by impulses produced by abnormal variations of the pressure in the conduits, and a pressure-producing device at different points of said network; of two check-valves interposed. in the conduits at predetermined points on either side of each impulse-producing device, oneof said valves operating to close under a forcing impulse and the other under a suction impulse, for the purposes set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

FRITZ ROSSBACH-ROUSSET.

Witnesses:

VVOLDEMAR HAUPT, HENRY HAsPER. 

